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$118+ Cheap flights from Baltimore (BWI) to Ottawa (YOW)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — YOW
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Baltimore to Ottawa

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Ottawa (YOW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 17, 2025.

Round-trip from

$289
(Kiwi.com)

One-way from

$118
(Mytrip)

Popular in

March

Cheapest in

January

Average price

$452
From Baltimore/Washington to Ottawa
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One-way flight from Baltimore/Washington to Ottawa
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Highest demand for flights based on searches. 3% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Baltimore to Ottawa

Cheapest flights from Baltimore to Ottawa
Explore the most affordable flight options available from Baltimore to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/225:20 pmBWI - YOW
2 stops31h 02mMultiple Airlines
Wed 10/299:30 amYOW - BWI
1 stop23h 04mMultiple Airlines
Deal found 9/15$289
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/154:00 pmBWI - YOW
1 stop25h 20mMultiple Airlines
Wed 10/224:25 pmYOW - BWI
1 stop18h 05mMultiple Airlines
Deal found 9/16$299
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/146:56 amBWI - YOW
1 stop10h 24mMultiple Airlines
Thu 10/164:25 pmYOW - BWI
1 stop16h 09mMultiple Airlines
Deal found 9/16$300
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:38 amBWI - YOW
2 stops17h 44mMultiple Airlines
Sun 10/53:50 pmYOW - BWI
1 stop20h 04mMultiple Airlines
Deal found 9/16$306
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/298:52 pmBWI - YOW
1 stop20h 05mMultiple Airlines
Thu 10/24:25 pmYOW - BWI
1 stop23h 07mMultiple Airlines
Deal found 9/16$308
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/168:21 pmBWI - YOW
1 stop20h 59mMultiple Airlines
Thu 10/234:25 pmYOW - BWI
1 stop20h 15mMultiple Airlines
Deal found 9/16$309
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/316:56 amBWI - YOW
1 stop10h 29mMultiple Airlines
Mon 11/35:40 amYOW - BWI
2 stops16h 56mMultiple Airlines
Deal found 9/16$317
This Kiwi.com deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/267:49 pmBWI - YOW
1 stop21h 31mMultiple Airlines
Tue 9/304:25 pmYOW - BWI
1 stop23h 04mMultiple Airlines
Deal found 9/17$318
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/196:53 amBWI - YOW
1 stop10h 04mMultiple Airlines
Thu 10/234:25 pmYOW - BWI
1 stop20h 15mMultiple Airlines
Deal found 9/16$319
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/228:00 amBWI - YOW
1 stop8h 57mMultiple Airlines
Sat 10/254:25 pmYOW - BWI
2 stops18h 36mMultiple Airlines
Deal found 9/15$324

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore to Ottawa that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Baltimore to Ottawa that are best for you.

Fly from

Baltimore

Fly to

Ottawa

Route

Depart

Return

Price

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Mon 10/13

8:21 pm-5:20 pm

1 stop20h 59m

Ottawa

Thu 10/16

4:25 pm-8:34 am

1 stop16h 09m

$306

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Mon 9/29

8:52 pm-4:57 pm

1 stop20h 05m

Ottawa

Thu 10/2

4:25 pm-3:32 pm

1 stop23h 07m

$308

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Thu 10/16

8:21 pm-5:20 pm

1 stop20h 59m

Ottawa

Thu 10/23

4:25 pm-11:54 am

2 stops19h 29m

$337

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Sat 9/27

9:39 pm-4:57 pm

1 stop19h 18m

Ottawa

Wed 10/1

3:50 pm-11:01 am

1 stop19h 11m

$338

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Thu 10/2

9:38 am-12:22 am

2 stops14h 44m

Ottawa

Sun 10/5

3:50 pm-11:54 am

1 stop20h 04m

$346

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Tue 11/4

6:56 am-5:25 pm

1 stop10h 29m

Ottawa

Thu 11/6

9:30 am-7:30 pm

1 stop10h 00m

$348

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Wed 10/15

1:35 pm-2:56 pm

2 stops25h 21m

Ottawa

Wed 10/22

4:25 pm-10:30 am

1 stop18h 05m

$348

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Tue 10/14

6:56 am-5:20 pm

1 stop10h 24m

Ottawa

Thu 10/16

4:25 pm-11:54 am

2 stops19h 29m

$353

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Tue 10/14

6:56 am-5:20 pm

1 stop10h 24m

Ottawa

Fri 10/17

5:55 am-6:35 am

3 stops24h 40m

$359

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Mon 10/27

6:56 am-5:25 pm

1 stop10h 29m

Ottawa

Thu 10/30

9:15 pm-8:46 pm

2 stops23h 31m

$359

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 14 results
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Best time to book a flight from Baltimore to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Baltimore with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Baltimore to Ottawa

What is the cheapest month to book a flight from Baltimore to Ottawa?

Currently, January is the cheapest month in which you can book a flight from Baltimore to Ottawa (average of $294). Flying from Baltimore to Ottawa in September is currently the most expensive (average of $428). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BWI to YOW?

Find hourly flight availability from Baltimore to Ottawa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 13% on flights from Baltimore to Ottawa by exploring options for tickets in the morning.

Related info for your journey

Find useful and relevant information for your journey from Baltimore to Ottawa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Baltimore to Ottawa that include hotel bookings?

    Yes. In addition to deals on Baltimore to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Baltimore to Ottawa?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to Ottawa.

  • Can I find deals for business class flights from Baltimore to Ottawa?

    Yes. Cheapflights offers flight deals from Baltimore to Ottawa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Baltimore to Ottawa?

    Currently, January is the cheapest month in which you can book a flight from Baltimore to Ottawa (average of $294). Flying from Baltimore to Ottawa in September is currently the most expensive (average of $428). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Petawawa

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